Plumbing fixture



.lune 17, 15930. A. M. KHUN PLUMBING' FIXTURE Filed April 5, 1929 w n L@ k .Z S x -I L Y m NRW u x m. R v T x mzw A 6 M j JM WUNESSES Patented June 17, 1930 ALBERT n. KH'UN, OEELIZAEETH, NEW JERSEY l" PLUMBING FIXTURE Appiibatinla Apiil'a, 1929. lsewn No. 352,271. I

This invention tures. k i y The invention particularly relatesto back pressure traps in which; the'iiovvof fluid relates to plumbingl'iix through the trap is con'finedto a'predeter.-

mined direction andback flowr` or back presf sure is'preVented. v

It is among the objectsof'the present invention to provide a' plumbing ,fixture in i Which a buoyant' float. is adapted to control the movement of a `valve`-,vvith respect Jto, its valveseat.

n is a further object of th 'pes'eiitfiiiven-- tion-.to provide a buoyantfloat incombinationfwith leveragemeansfor controlling lthe movements `of an associated valve.V I

A further object ofthe present invention istoH provide a back pressure y-tra'pfin which the valve and controlling loat'therefor'are receiveduwhen in openfposition out of the path of liuidflow, `Wherebytlie-rate of flow offluidthrough lthe fixture Will notbe irnpeded. 'l

Other important ,objectsv of the present invention ,include th,e ,combination yand interrelation of parts whereby the Whole forms a novel, .improved and leiiicient structure ywel] designed tomeet .the demandsofheconomic manufacturel Other objects and features"v ofthe present invention Will be apparent froml a'consideration of the following specification ltaken in conjunction with the accompanying drawings, in Whichl 1 trating one x `form of i the present invention Fig. 2 is a'sectionalview takenfthrough lines 2 2 of Figyl; ,I

Fig.k 3 `is a detailv Aof one preferred form of valve mounting. l i i Referring more .particularly tolr the drawings, the present invention` haslbeen disclosed in association with a str'aightway plumbing fixture, includinga ,body 10,inlet end 11 and outlet end 112', theinlets and outlets being arranged forsoldered connection with associated fixtures. y. r l e AIt will beunderstood that. the present invention is in-,nor wayfconfined tothespeciic plumbing fixture herein disclosed and that Figure 1 isf a v.longitudiI/lal 'sectionillusterial from Which the float. is formed, lmay the valve assembly may be associatedV with various typesoffixtures arranged for either soldered or threaded interrelation and that it mayy be-associated With-P iixtures,i Ls, offsets, vertical and'horizontal fixtures, 55'

.together With manholegcovers andY ferrule Y type fixtures. It i will: be understood lthat modifications ofthe structural features here ,f in presented to conform thefinvention to vaif riousSPeCic types lof .xtures, do not ,den '60 part' from the spirit or` 'scope ofthe present invention.l n, y f

, Referring particularly to Fig. 1 lof the drawings, the bodyy 10k of the straightvvay fixture illustrated is j preferably, provided With an Vextended housing 13, adapted to lie above the body of thefitting and to provide a space for the reception'of the valveand valve float out of the path ofjtravely of the.. Huid passing through the fixture. The hous- 0, ing 13 is preferably provided Withla readily'removable cover 14, Which maybe secured thereto through suitable vnu'tandb lt assemblies 15, tlie'arrangementbeing such that access to .the lfixture andthevalve Aas- 75 sembly mounted therein may 'be' readily had. Pivotally vmounted "vvithin the fixture. to ybe normally received Withinthe housing13, a iioat 16 is provided, Whichis illustrated as circularand substantiallyV flat and isxpreferably formed of metal or the like, andmay,

lif desired, bevlled with helium gasy or other buoyant substance, the' arrangement;,being'l suchl that should the fluid Withinthe fixture l be blocked from 'passage therethrough and 5 the level of thevfluid rise Within the housing 13, the float 16 Will be buoyed up to the dotted-lineposition shown in Fig.l 1. It Will be understood that. the structure Yand'mabe Widelyvariedand, if'desired, a simple hollow rubber -lloat may 1be utilized. n yFor mounting vthe-iioat-for pivotalfmovement with respect tothe housing 13,` substantially U,-shaped.member is provided including a base 17fandparallel extending arms 18. Theflo'at'` 16 is arranged preferf ably'for ,pivotal movement with the base 17, a preferred attachment .being illustrated by the eyelets 19 associated with thelloat 16, 100

through which the base 17 is mounted. For

V pivotally 'mounting the U-member within of the housing 18.

the housing 13, parallel intermediate portions of the arms 18 Vare associated with a transversely extending `fulcrum arm 20, the

extremities of which are mounted for pivotal movement within apertures 21 Vof adloosely mounted thereon. In eitherinstance',

free pivotal rotation of the arms 18 in response to the buoyancy fof the float 16,

accomplished.

ssociated with the "float :and 'Uln'embeu a lsuitable val-ve 23 is provided, "thepvalve being illustrated vas a disk valve of V i'rusto-V conical 'formation adapted 'to be received 'when in closed position as indicatedfin 1, against a suitable Vvalve seat 2'42.` The .Y valve seat 424C .is Vshown asV formed of suitable resilient material Vand secured with- Q'in "its receiving Vrecess by' an expanding metallic ring 25.V The 'valve '23 'is preferably form-@def metti wen adaptin rig. v1.

ed tok resist corrosion or therlike. y Tt 'will be understood, vhowever, that if sdesiredjthe valve 28V may lbe formedentirely .or'in part o3? resilient A'material andthe resilient kvalve seat replaced by 4a simple metallic surface :against which .the valve may seat. It will be seen that the invention is, therefore, not confined to vspeciiic materials employed in the yvalve or in J"the valveseat.

, For' movi rthe 'valve23 'in .response vto 'movements oi the iioat16, the lextremities o'f the larms 18 'are enlarged as at 2.6, and provided ywith far'cuate 'apertures 27 which are adapted to 'receive therethrough ,angui 'larly `terminating fingers 28 carried upon a' transversely extending valve ulcrum vrod 29.. The lingers 28 are preferably 'provided'with 4suitable rollers l28 which jprevent 'undue friction between the parts.V 'The ro'd 'L29 is vmounted for pivotal movement within the housing A13 by `apertured threaded members 30, fthejm'ounting being preferably substair itially similar to the mounting "of 'the'.fulforum ar`1n'2'O. The connection between the `arms 18 and the ulcrum rod '29 by means :of the "fingers '28, A'is such Vthatfupward movenient 'of "the Ifloat 16 will cam downwai-'diy 'theextremit'ies of the lingers 28, vthus 'pivotally moving the v`valve 23 ldownwardly to `Contact with its vv"seat, -the positionV of .the

vfloat, thel AU-I'neniber' 'and the valve when seated, being indicated I.by ithe dotted lines its 'fulcru'm rod "29, `lugs 31 are pro- For mounting the *valve 23 tor movement Y threaded extremities which are adapted for threaded engagement with suitable balls 83.

The arrangement may be clearly seen by reference to Fig. 3 of the drawings. The balls 33 are received within suitable housings 3 4 carried by the valve 28. The housings 3aare preferably secured on the valve 28 by soldering or similar connection, and include a'pair of side apertures 85Y through' which the 'bal'l23 may be inserted before threaded 4engagement with the arm 32. Surrounding the arm 32 and abutting the lugs 31 and the housing' 3.4, an expansion spring 36 is provided, the arrangement being such that a fballsand-socketjrointis provided between the caused to seat out of alinemie'nt with its nor- Inay support 'from its viilcrum' rod 29, the

spring 36 may be 'compressed and the 'ball S33 may 'be receivedwithin the housing the'positi'on'indicatedin Fig. 3."v 1

4In the operation ofthepresentj-invention,

` it will be seen that during the normal flowv `fixture, the `float 16 .is in lthe ylowered position shown in Figl. Thusthevalve23 is pivt ota'lily moved 'upwardlypermitting Afree passage of Huid .throughjthe valve seat and bea ing .received within thefhou'sing 13 twhereby f, Vneither' the float Vnor the valvev restricts 4the passage of duid through the'giixture; Should, however', thepassage of Huid be' blocked,Y back pressure will be exerted and the Qiiuid level will raise into lthe housing :18 whereby 05 ythe float 16 willbebuoyedup tothe ,position .shown in dottedvfl'ines in Fig. 1 and fas described the Ulmember jvvill 'be pivotally moved 'to 'rotate the vvalve flilcrum 'arm 29, thus moving the valve to the closedlpositiou whereby vback ,pressure furtherba'clr through J` the system will be prevented.

'From the fregoing it' will be readily seen thatlthe present invention'provides asimple and eflicient structure whichmay kbazar-f,

ranged in various typesoffittings 'without 'retarding therflow of luiditherethrough.

1t will be understoodV .that Anumerous changes and modifications in the materials employed and =in the vstructural details dierein ,presented may Abe resortedto' withoutdeparting Itreme-the `spirit or ,scolpe'of the pres Yent :invention asoutlined inthe appended claims. y .Y

What is claimed yis;y Y. Y l, j, Y u y Y lA'p'lumbing fixture, inclu'dinga valve Vand valve seat, land buoyant means for ,confV trolling the movement fof Tsaid valve, v.said

means including a iioat Vanidfal'n associated '1er-@rese system "between, said` @float wl isail ian valve, said levera e system including a U-member intermedlately pivoted to said fixture. Y

2. A plumbing fixture, including a valve and valve seat, and buoyant means for controlling the movement of said valve, said means including a oat and an associated leverage system between Said float and Asaid valve, said leverage system including Va U` member intermediately pivoted to said fixture, the base of said U being associated with said float.

3. A plumbing fixture, includinga valve and valve seat, and buoyant means for controlling tlie movement of said valve, said means including a float and an associated leverage system between said oat and said valve, said leverage system including a U- member intermediately pivoted to said fixture, the base of said U being associated with' said float, the arms of said U being arranged With said valve for controlling the movement thereof.

ALBERT M. KHUN. 

